さえない20代

Recording by Misato Watanabe.

Recording identifiers

ISRC
JPES09302960
CopyrightID (CopyrightChains transaction hash)
0x3ab19b68080df605127e0bb82e0b509a098231ea57b65ca0127cf44f6517a253
Copyright registration time
2026-07-06T22:41:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:c385dd8aac38e7f1c119cd419d8797cff0f422b3d294707aea39620995dd5c9f

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.